Saint-Preux (born 1950) is a French composer of contemporary classical music which also combines elements from popular music and electronic music. His real name is Christian Langlade. He got a surprising hit in 1969 with his song "Concerto pour une Voix (Concerto for One Voice)", sung by Danielle Licari - Concerto Pour Une Voix. The single sold thousands of copies and was top 20 in so different countries as France, Mexico and Japan…